---
name: "Sisimai::Reason::AuthFailure"
section: "3pm"
platform: "linux"
package: "libsisimai-perl"
version: "5.3.0-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Sisimai::Reason::AuthFailure"
---

# Sisimai::Reason::AuthFailure(3pm)

Bounce reason is "authfailure" or not.

## NAME

Sisimai::Reason::AuthFailure - Bounce reason is "authfailure" or not.

## SYNOPSIS

```
    use Sisimai::Reason::AuthFailure;
    print Sisimai::Reason::AuthFailure->match('5.7.9 Header error');    # 1
```

## DESCRIPTION

`"Sisimai::Reason::AuthFailure"` checks the bounce reason is `"authfailure"` or not. This class is called only `"Sisimai::Reason"` class.

This is the error that an authenticaion failure related to SPF, DKIM, or DMARC was detected on a destination mail host.

```
    Action: failed
    Status: 5.7.1
    Remote-MTA: dns; smtp.example.com
    Diagnostic-Code: smtp; 550 5.7.1 Email rejected per DMARC policy for example.org
```

## CLASS METHODS

### "text()"

`text()` method returns the fixed string `"authfailure"`.

```
    print Sisimai::Reason::AuthFailure->text;  # authfailure
```

### "match(string)"

`match()` method returns `1` if the argument matched with patterns defined in this class.

```
    print Sisimai::Reason::AuthFailure->match('5.7.0 SPF Check: fail');    # 1
```

### "true(Sisimai::Fact)"

`true()` method returns `1` if the bounce reason is `"authfailure"`. The argument must be `"Sisimai::Fact"` object and this method is called only from `"Sisimai::Reason"` class.

## AUTHOR

azumakuniyuki

## COPYRIGHT

Copyright (C) 2022-2024 azumakuniyuki, All rights reserved.

## LICENSE

This software is distributed under The BSD 2-Clause License.